Defib takes grenade slot. Two ammo types and three grenade types each have an off-screen slot. Bots still use medkits, pills and adrenaline as normal, but won't pick up defibs.
The thumbnail shows a player with both a defib and a medkit.Yes, you can do that.

Can carry all items!
Don't have to choose - defib or healthkit; pipebomb or molotov!
Now you can carry it all!

Cons

Inventory slots 6 to 10 (additional) cannot be seen on-screen, but that is not the fault of the author.

Thanks for a brilliant, and much-needed mod. Now you can carry everything! While the additional inventory slots cannot be seen, this is not a major problem, nor can the author be faulted. I've always wanted a mod like this and thought it should be standard on single player. Now it is.
I recommend strongly combining this with the "gas (& cola) pickups" - I just did making my own mod for personal use.

Recently I've had problem with the defib disappearing after I grab any given grenade / throwable. Anyone else had this problem? Any fix to it if so? Brilliant mod - but would like to be able to carry grenades as well as defib unit.

I thought I had posted a reply - there isn't a problem. with this mod. The conflict was created by another mod in my add-on folder that also had molotov and pipebomb scripts. My review should say it all.

Can carry all items!
Don't have to choose - defib or healthkit; pipebomb or molotov!
Now you can carry it all!

Cons

Inventory slots 6 to 10 (additional) cannot be seen on-screen, but that is not the fault of the author.

Thanks for a brilliant, and much-needed mod. Now you can carry everything! While the additional inventory slots cannot be seen, this is not a major problem, nor can the author be faulted. I've always wanted a mod like this and thought it should be standard on single player. Now it is.
I recommend strongly combining this with the "gas (& cola) pickups" - I just did making my own mod for personal use.